Light field (LF) camera is a camera that can capture information about the light field emanating from a scene and can provide multiple views of a scene. Recently, the LF image is becoming more and more important since it can be used for post-capture refocusing, depth sensing, and de-occlusion. However, LF cameras are faced with a trade-off between spatial and angular resolution [1]}. In order to solve this issue, SR technology is introduced to achieve a good balance between spatial and angular resolution.
